Product Overview
PP polypropylene sheet — the standard structural thermoplastic for corrosive chemical equipment fabrication. Extruded from 100% virgin PP homopolymer resin in thicknesses from 2 mm to 30 mm (custom to 50 mm), standard sheet sizes 1000×2000 mm, 1220×2440 mm, 1500×3000 mm, and 2000×3000 mm. White, beige, and grey finishes with smooth (Ra ≤0.8μm), matte, or anti-slip surface. Supplied to chemical plants, electroplating facilities, laboratory fume hood fabricators, water treatment contractors, and semiconductor equipment manufacturers in 50+ countries. PP sheet is the foundation material for every corrosion-resistant system described on this site — tanks, ductwork, scrubbers, and fittings are all fabricated from it.
| Material | 100% virgin PP homopolymer — zero recycled or regrind content. Lot-traceable to incoming resin. Co-polymer (PP-C) and V0 flame retardant grades available |
| Thickness range | 2-30 mm standard; custom to 50 mm. ±0.2 mm tolerance (≤10mm), ±0.3 mm (10-20mm), ±0.5 mm (>20mm) |
| Sheet sizes | 1000×2000 mm, 1220×2440 mm (4×8 ft), 1500×3000 mm, 2000×3000 mm. Custom to 2000×6000 mm |
| Temperature range | -40°C to 90°C continuous service. Co-polymer grades available for sub-zero impact resistance |
| Density | 0.91-0.93 g/cm³ — 30% lighter than PVC, 85% lighter than steel |
| Colors | White, Beige, Grey (natural PP pigment). Custom Blue/Green/Black MOQ 500 kg |
| Surface | Smooth (Ra ≤0.8μm), Matte, Anti-slip textured |
| MOQ | 1 m² — no minimum for standard thicknesses and colors |
| Lead time | 15-25 days |
What Makes a PP Sheet Fit for Industrial Service — And What Doesn’t
Not all PP sheet is equal. The difference between a PP tank that holds acid for 15 years and one that stress-cracks at a weld seam within 3 years is determined by decisions made at the resin selection, extrusion, and quality control stages — before the sheet ever reaches a fabricator’s shop:
- Virgin vs recycled — the single biggest determinant of sheet quality. Recycled PP resin contains contaminants (other polymers mixed in during the recycling stream, degraded PP chains from previous thermal cycles, residual chemicals from the original application). A PP sheet made from recycled resin may look identical to virgin sheet — same color, same thickness, same surface finish — but welds differently (contaminants change the melt flow), bends differently (degraded molecular chains embrittle faster under stress), and resists chemicals differently (contaminants create preferential attack sites). Every Xicheng PP sheet is extruded from 100% virgin PP homopolymer with melt flow index verified per ISO 1133 before extrusion. Resin lots outside our specified MFI range are rejected — we do not adjust process parameters to accommodate out-of-spec resin. For flame retardant applications requiring the same virgin-grade integrity with V0 rating, see our flame retardant PP sheet.
- Thickness tolerance — the difference between a tank that fits and one that doesn’t. PP sheet sold as “6 mm” with actual thickness varying from 5.5 mm to 6.5 mm across the same sheet creates problems for the fabricator: weld grooves cut to 6 mm are too deep in thin areas (excessive rod consumption, longer welding time) and too shallow in thick areas (incomplete root penetration, weak joint). Our ±0.2 mm tolerance for sheets up to 10 mm means the fabricator sets the welding parameters once and trusts the thickness is consistent across every sheet in the order. Every sheet is measured at 5 points (center + 4 corners) and the inspection data ships with the order — you know exactly what you received.
- PP’s defining industrial advantage: it has no corrosion mechanism. Metals corrode through electrochemical reactions — rust on steel, pitting on stainless, galvanic corrosion between dissimilar metals. PP does not corrode because it is electrically non-conductive (surface resistivity ≥10¹⁴ Ω per IEC 60093) and chemically inert to aqueous acids, alkalis, and salt solutions at industrial concentrations. A PP tank wall is the same material at the liquid-contact surface as it is at the exterior — there is no coating to fail, no lining to debond, no substrate to rust when the barrier layer is breached. In electroplating environments, PP’s electrical insulation eliminates the stray current corrosion that perforates metal tank bodies within months. For chemical storage applications demanding this zero-corrosion guarantee, see our PP water storage tanks and PP chemical acid storage tanks fabricated from Xicheng PP sheet.
Material selection for corrosive industrial environments is governed by standards including US EPA hazardous waste containment guidelines which recognize that non-metallic materials eliminate the corrosion failure modes inherent to metal tanks and ductwork in chemical service.
Why Xicheng
16 years, 2600+ systems shipped worldwide. PP sheet is the raw material for every system we manufacture — we extrude it, we weld it, we ship finished equipment made from it. When you buy PP sheet from Xicheng, you’re buying from a manufacturer that also fabricates tanks, ductwork, and scrubbers from the same sheet — we know what a fabricator needs because we are fabricators:
- Same resin, same batch, every sheet in your order. A multi-sheet order for a large tank project requires every sheet to weld identically — same melt temperature, same flow characteristics, same heat history. If sheet 1 and sheet 7 behave differently under the welding torch, the fabricator must adjust technique between sheets, slowing production and increasing weld defect risk. We fulfill multi-sheet orders from a single extrusion campaign — all sheets from the same resin batch, same process parameters, same thermal history. For fabricators building multi-ton tank installations or multi-kilometer duct networks, this batch consistency eliminates the material variable from welding quality control.
- We weld what we extrude — the feedback loop is built in. Our fabrication shop consumes approximately 40% of our sheet production — the PP tanks, ducts, and scrubbers we ship as finished equipment are built from our own sheet. If a sheet grade welds poorly, we discover it in our own shop before a customer does. If a thickness tolerance issue causes fit-up problems, our own fabricators flag it immediately. This internal consumption creates a quality feedback loop that standalone sheet extruders (who never touch a welding torch) don’t have.
- Regional supply with local technical support. We maintain distributor relationships and project support capability in key regions: Middle East (UAE, Saudi Arabia), Southeast Asia (Malaysia, Singapore, Thailand, Vietnam, Indonesia, Philippines), and Africa (Nigeria, South Africa, Kenya, Egypt). For fabricators in these regions, we provide application engineering support — material selection guidance, welding procedure recommendations, and joint design advice — not just a price quote and a shipping date. Contact xicheng023@outlook.com for regional distributor information.
Send your sheet specifications to xicheng023@outlook.com. We’ll provide a quotation with thickness tolerance data from your order’s production batch. WhatsApp: +86 18927456906.
Core Advantages
- 100% Virgin PP — No Recycled, No Regrind, No Contamination: Every sheet from virgin homopolymer with lot-traceable resin. Melt flow verified per ISO 1133 before extrusion.
- ±0.2mm Thickness Tolerance, 5-Point Verified Per Sheet: Inspection data ships with every order — you verify what you received against what you ordered.
- Batch-Lot Consistency for Multi-Sheet Projects: Single extrusion campaign for project orders — every sheet welds identically across the entire order.
- Fabricator’s Extruder — We Weld What We Make: 40% of sheet output consumed in our own fabrication shop — quality issues found internally, not by customers.
- Halogen-Free, No Acid Gas on Combustion: PP contains no Cl, Br, or F — safe for occupied building ventilation, cleanroom, and electronics manufacturing.
Key Specifications
Mechanical & Physical Properties
| Material | 100% Virgin PP (Polypropylene) Homopolymer — zero recycled content |
| Density | 0.91-0.93 g/cm³ (ISO 1183) |
| Tensile Strength | 28-32 MPa (ISO 527) |
| Flexural Strength | 35-40 MPa (ISO 178) |
| Impact Strength (Notched Izod, 23°C) | 3-5 KJ/m² (ISO 180) |
| Heat Deflection Temperature (0.45 MPa) | 90-100°C (ISO 75) |
| Vicat Softening Point | 140-150°C (ISO 306) |
| Working Temperature Range | -40°C to 90°C |
| Water Absorption (24h) | < 0.01% (ISO 62) |
| Surface Resistivity | ≥ 10¹⁴ Ω (IEC 60093) — electrical insulator grade |
| Flammability | HB (UL 94). V0 flame retardant grade available: FR PP sheet |
| Colors | White, Beige, Grey (Custom: Blue/Green/Black, MOQ 500kg) |
| Surface Finish | Smooth (Ra ≤0.8μm), Matte, Anti-slip (textured) |
Available Thicknesses & Sheet Sizes
| Thickness | Tolerance | Standard Sheet Sizes | Approx. Weight (1220×2440mm) |
|---|---|---|---|
| 2mm | ±0.2mm | 1000×2000mm / 1220×2440mm | 5.4 kg |
| 3mm | ±0.2mm | 1220×2440mm / 1500×3000mm | 8.0 kg |
| 4mm | ±0.2mm | 1220×2440mm / 1500×3000mm | 10.7 kg |
| 5mm | ±0.2mm | 1220×2440mm / 1500×3000mm / 2000×3000mm | 13.4 kg |
| 6mm | ±0.2mm | 1220×2440mm / 1500×3000mm / 2000×3000mm | 16.0 kg |
| 8mm | ±0.2mm | 1220×2440mm / 1500×3000mm / 2000×3000mm | 21.4 kg |
| 10mm | ±0.2mm | 1220×2440mm / 1500×3000mm / 2000×3000mm | 26.7 kg |
| 12mm | ±0.3mm | 1220×2440mm / 1500×3000mm / 2000×3000mm | 32.1 kg |
| 15mm | ±0.3mm | 1220×2440mm / 1500×3000mm | 40.1 kg |
| 20mm | ±0.3mm | 1500×3000mm | 80.2 kg |
| 25mm | ±0.5mm | 1500×3000mm | 100.2 kg |
| 30mm | ±0.5mm | 1500×3000mm | 120.3 kg |
Custom thicknesses to 50mm, custom dimensions to 2000×6000mm. For 10 mm and above in heavy structural grades, see our thick PP sheet 10-25mm. For thin-gauge applications 3-10mm, see thin PP sheet 3-10mm. MOQ 1 piece.
Chemical Resistance
| Chemical | Formula | Concentration | Temperature | Resistance |
|---|---|---|---|---|
| Sulfuric Acid | H₂SO₄ | Up to 96% | 23°C | Excellent |
| Hydrochloric Acid | HCl | Up to 37% | 23°C | Excellent |
| Nitric Acid | HNO₃ | Up to 30% | 23°C | Excellent |
| Phosphoric Acid | H₃PO₄ | All concentrations | 23°C | Excellent |
| Hydrofluoric Acid | HF | Up to 40% | 23°C | Excellent |
| Sodium Hydroxide | NaOH | All concentrations | Up to 60°C | Excellent |
| Ammonium Hydroxide | NH₄OH | All concentrations | Up to 60°C | Excellent |
| Alcohols / Glycols | — | — | Up to 60°C | Good |
| Aromatic Solvents | — | — | 23°C | Limited — not recommended for prolonged contact |
PP is one of the few thermoplastics suitable for continuous hydrofluoric acid (HF) service — a critical capability for semiconductor wet bench and silicon etching applications. However, PP is not suitable for: strong oxidizing agents (concentrated HNO₃ above 50%, fuming H₂SO₄), chlorinated hydrocarbons (dichloromethane, chloroform), or aromatic solvents (benzene, toluene, xylene) at elevated temperatures. For these applications, PVDF or PTFE is required. For workplace exposure limits of common industrial chemicals, refer to OSHA Chemical Data.
Certifications and Compliance
- CE Certified — PP Polypropylene Sheet (3 certificates)
- RoHS Compliant — PP homopolymer material
- ISO 9001:2015 — Quality Management System
- ISO 14001:2015 — Environmental Management System
- SGS Tested — Mechanical properties (tensile ISO 527, impact ISO 180, flexural ISO 178), dimensional accuracy, chemical resistance per ISO 175
- Material Certification — Lot-traceable certificates of analysis available with every order at no charge
- UL 94 — HB standard grade; V0 flame retardant grade available (halogen-free FR additive — no brominated or chlorinated flame retardants)
How to Order
- You send — Required thickness (mm), sheet dimensions (mm), color, surface finish, quantity (sheets or m²), application (tank/duct/hood/other), and any special requirements (UV-stabilized, co-polymer for low-temperature, V0 FR grade)
- We confirm — Technical feasibility, thickness/size availability, batch schedule, pricing, lead time
- We produce — Single extrusion campaign for project orders, 5-point QC measurement per sheet
- We ship — Wood pallet packaging with moisture barrier. Sea freight (FOB Shenzhen), air freight, or land transport
Contact xicheng023@outlook.com or WhatsApp +86 18927456906 — quotation with batch data within 24 hours.
Complete Your System
- PVC Rigid Plastic Sheet — PVC alternative with inherent V0 fire rating
- White PP Cleanroom Sheet — Smooth white PP for GMP pharmaceutical and cleanroom applications
- Thick PP Sheet 10-25mm — Heavy structural grades for freestanding tank fabrication
- PP Rigid Engineering Plate — Beige/grey/white rigid PP plate for industrial fabrication
- Thin PP Sheet 3-10mm — Light-gauge structural PP for duct panels and tank covers
- PP Water Storage Tank — Fabricated from Xicheng PP sheet
- PP Industrial Pipe — PP pipe system for sheet-fabricated equipment connections
FAQ
What thickness of PP sheet do I need for a chemical storage tank?
For rectangular tanks with external steel reinforcement: up to 2,000L use 8-10mm; 2,000-5,000L use 10-12mm; 5,000-10,000L use 12-15mm. For freestanding tanks without steel frame, use 20-30mm. These are guidelines only — contact Xicheng engineering with your tank dimensions, specific gravity of stored liquid, and operating temperature for a design calculation.
Can PP sheet be used outdoors?
Standard PP sheet will embrittle after 2-3 years of direct tropical sunlight due to UV degradation. For outdoor installations, specify UV-stabilized PP grade, or protect standard sheet with UV-resistant coating or a canopy/shelter. Grey PP offers marginally better outdoor durability than white due to carbon black content in the pigment. For guaranteed outdoor durability, specify UV-stabilized PP at time of order.
How does Xicheng PP sheet compare to European or North American products?
Mechanical properties and chemical resistance are equivalent to European/US-manufactured PP sheet — both are extruded from the same virgin PP homopolymer resin grades to the same ISO standards. The difference is supply chain: factory-direct pricing from Shenzhen is typically 20-35% lower than Western distributors, with sea freight adding 2-4 weeks to delivery for non-Asian destinations. All products carry CE and RoHS certification. Third-party testing per ISO standards available on request.
Do you provide material certificates?
Yes. ISO 9001:2015 material certification with lot traceability is available on request at no charge. Third-party test reports (tensile, impact, chemical resistance) can be arranged for project-specific requirements — contact us for scope and timeline.
What is the minimum order quantity?
1 m² for standard thicknesses (2-30mm), standard colors (white/beige/grey), and standard surface finish (smooth). Custom colors: MOQ 500 kg. Custom dimensions: MOQ 1 sheet. No upper limit on order size.
